Finding the Fourth Proportional to 4,157,541.40, 6,240,977.70 and 3,215,090.20
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Solution
The fourth proportional to 4,157,541.40, 6,240,977.70 and 3,215,090.20 is: 4,826,243.28
Step by Step Solution
- Step 1: Write the proportion equation
4,157,541.40 : 6,240,977.70 = 3,215,090.20 : x - Step 2: Convert to fraction form
4,157,541.40/6,240,977.70 = 3,215,090.20/x - Step 3: Cross multiply
4,157,541.40x = 6,240,977.70 × 3,215,090.20 - Step 4: Simplify right side
4,157,541.40x = 20,065,306,241,688.54 - Step 5: Solve for x
x = 20,065,306,241,688.54/4,157,541.40 - Step 6: Final answer
x = 4,826,243.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.